1. According to official website, the Education Bureau of Longmen County, the Sixth Primary School of Longmen County is located in the oil mill of Oxfam Hong Kong, Longmen County, Huizhou City, Guangdong Province, in the east of Longmen County, so the Sixth Primary School of Longmen County is in the east of the city.

2. Longmen County, which belongs to Huizhou City, Guangdong Province, was originally Shanglongmen District of Zengcheng County, so it was named after Longmen. Located in the middle of Guangdong Province, in the upper reaches of Zengjiang River, it borders Heyuan City and Boluo County of Huizhou City in the southeast, Conghua District and Zengcheng District of Guangzhou City in the southwest, and Xinfeng County of Shaoguan City in the north, with a total area of 2,267.2 square kilometers.